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HarryM1BYT · 10th June 2011, 22:39

I suffered some deterioration of the radio reception too, by hooking onto the wire before the Rover amp (as per Mark's suggested method)....

I resolved it by installing a completely separate antenna just for the TMC. Instead of connecting the inner of the coax onto the existing antenna, just connect it to a length of single wire around 6 to 8 feet long, then tuck that up around the edges of the roof lining. Mine ran from the rear, along the passenger side, then along the front edge.

I don't think the TMC reception is nearly so critical as the radio reception - if it can grab the TMC data every so often, it then stores it for use. I know my TMC is working fine, when check it out it shows 100% signal and solidly locked on. When I have checked via the satnav's own TMC button it shows it constantly scanning for better reception, yet with a stack of received holdups on the road.

10th June 2011, 22:39	#258
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	I suffered some deterioration of the radio reception too, by hooking onto the wire before the Rover amp (as per Mark's suggested method).... I resolved it by installing a completely separate antenna just for the TMC. Instead of connecting the inner of the coax onto the existing antenna, just connect it to a length of single wire around 6 to 8 feet long, then tuck that up around the edges of the roof lining. Mine ran from the rear, along the passenger side, then along the front edge. I don't think the TMC reception is nearly so critical as the radio reception - if it can grab the TMC data every so often, it then stores it for use. I know my TMC is working fine, when check it out it shows 100% signal and solidly locked on. When I have checked via the satnav's own TMC button it shows it constantly scanning for better reception, yet with a stack of received holdups on the road. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.